苏州混凝土水泥制品研究院有限公司

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发布时间:2020-01-06 00:00:00
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杂志简介

主办单位: 苏州混凝土水泥制品研究院
中国混凝土与水泥制品协会
  • 主编 : 李建华
  • 常务副主编 : 王春蓉
  • 刊期 : 月刊
  • 电话 : 0512-68285716
  • E-mail : sccpitg@126.com
  • 国内统一刊号(CN) : 32-1173/TU
  • 国际标准刊号(ISSN) : 1000-4637
  • 邮发代号 : 28-80
hunnitu 微信公众号
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混凝土研究

冻融循环对完全碳化混凝土轴拉性能的影响
冻融循环对完全碳化混凝土轴拉性能的影响
  • 周雁玲,曹大富,葛文杰,张 鑫,董 政
2021年第6期
摘要
引用本文
摘   要:为研究冻融作用对完全碳化混凝土轴拉性能的影响,制作了C30、C40、C45三个强度等级的混凝土试件,经完全碳化后进行冻融循环试验和轴心受拉试验。结果表明:完全碳化使C30、C40和C45混凝土的峰值应力分别上升8.7%、9.7%和12.1%,峰值应变分别上升1.9%、7.2%和9.6%;随冻融循环次数的增加,混凝土受拉峰值应力和峰值应变不断下降,且混凝土强度等级越低,下降速度越快。根据碳化后不同冻融循环次数时混凝土的峰值应力和峰值应变数据变化情况,提出了相应的拟合公式。根据试验结果拟合了受拉应力-应变上升段曲线,结果表明:拟合效果良好。 Abstract: In order to study the influence of freeze-thaw on the axial tensile property of concrete after full carbonation, the specimens of C30, C40 and C45 were prepared. After full carbonation, freeze-thaw cycles and axial tensile tests were carried out. The results show that full carbonation increases the peak stress of C30, C40 and C45 concrete by 8.7%, 9.7% and 12.1%, and the peak strain by 1.9%, 7.2% and 9.6% respectively. With the increase of freeze-thaw cycles, the peak tensile stress and strain of concrete decrease. The lower the concrete grade, the faster the changing rate. According to the data changes of peak stress and peak strain at different freeze-thaw times after carbonation, a fitting formula was proposed. The tensile stress-strain rising curves were fitted, and the results show that the fitting effect is good.
周雁玲,曹大富,葛文杰,等.冻融循环对完全碳化混凝土轴拉性能的影响[J].混凝土与水泥制品,2021(6):1-7. ZHOU Y L,CAO D F,GE W J,et al.The Effect of Freeze-thaw Cycles on Axial Tensile Property of Full Carbonated Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):1-7.
3D打印混凝土关键问题及应用展望
3D打印混凝土关键问题及应用展望
  • 张启云
2021年第6期
摘要
引用本文
摘   要:对3D打印混凝土材料的流变性及可打印性、层间性能及各向异性、3D打印混凝土的纤维增韧方法及协同增韧技术等关键问题进行了总结和讨论,并对3D打印混凝土的工程应用进行了分析及展望。 Abstract: The key issues for 3D printing concrete such as the rheology and printability properties of concrete materials, the interlayer and anisotropy properties of 3D printing concrete, the fiber and concurrent reinforcement technology are summarized and discussed, and the engineering application of 3D printing concrete is analyzed and prospected.
张启云.3D打印混凝土关键问题及应用展望[J].混凝土与水泥制品,2021(6):8-12,18. ZHANG Q Y.Key Issues and Application Prospects of 3D Printing Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):8-12,18.
多元胶凝材料水化热动力学研究
多元胶凝材料水化热动力学研究
  • 任 旭1,2,张秀贞1,2,刘志超1,2,何永佳1,2,胡曙光1,2,曾 波3
2021年第6期
摘要
引用本文
摘   要:采用等温量热法测定了不同体系的多元胶凝材料水化放热速率和累计放热量,分析了矿物掺合料、温度和早强剂对胶凝材料水化放热过程的影响。基于Krstulovic-Dabic水化动力学模型计算了总放热量、水化时间和反应速率常数等动力学参数,讨论了不同体系胶凝材料水化反应各阶段的反应速率与反应程度的关系。结果表明:水泥、水泥-矿渣多元胶凝材料和水泥-粉煤灰多元胶凝材料的水化动力学过程可分为结晶成核与晶体生长(NG)、相边界反应(I)和扩散(D)3个阶段;在高温下和添加早强剂条件下,多元胶凝材料的水化动力学过程控制阶段为结晶成核与晶体生长(NG)和扩散(D)2个阶段。 Abstract: Hydration heat emission rate and cumulative hydration heat of different cementitious material were measured by isothermal calorimetry, and the effects of mineral admixtures, temperature and hardening accelerator on the hydration process of cementitious materials were analyzed. Based on the Krstulovic-Dabic hydration kinetic model, the kinetic parameters such as total hydration heat, hydration time and reaction rate constant were calculated, and the relationship between the reaction rate and the degree of hydration was discussed. The results show that the hydration kinetics of cement, cement-slag binder and cement-fly ash binder can be divided into 3 stages (NG, I and D), and the hydration kinetics of multiple cementitious materials under high temperature and hardening accelerator can be controled by 2 stages (NG and D).
任旭,张秀贞,刘志超,等.多元胶凝材料水化热动力学研究[J].混凝土与水泥制品,2021(6):13-18. REN X,ZHANG X Z,LIU Z C,et al.Study on Hydration Thermodynamics and Kinetics of Multiple Cementitious Materials[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):13-18.
基于耗散能理论的橡胶自密实混凝土疲劳力学性能研究
基于耗散能理论的橡胶自密实混凝土疲劳力学性能研究
  • 田华轩,陈徐东,陈 晨,刘志恒
2021年第6期
摘要
引用本文
摘   要:为研究橡胶自密实混凝土在循环荷载作用下的疲劳寿命,利用MTS液压伺服试验机进行了橡胶自密实混凝土四点弯曲疲劳试验。基于能量法分析了橡胶自密实混凝土的能量耗散特性。研究结果表明:橡胶自密实混凝土的单周疲劳耗散能wd呈现出明显的阶段性,其中,B阶段为主要阶段,且基本保持恒定;同一加载频率下,wd与应力水平呈指数关系;同一应力水平下,加载频率越高,wd越大;在低应力水平时的临界耗散能Wcd大于高应力水平时的临界耗散能,且Wcd随应力水平近似线性降低。此外,提出了一种基于耗散能的橡胶自密实混凝土的疲劳寿命预测方法,并与试验结果进行了对比,验证了该预测方法的有效性。 Abstract: In order to study the fatigue life of rubber self-compacting concrete under cyclic loading, the four-point bending fatigue test of rubber self-compacting concrete was carried out using MTS hydraulic servo testing machine, and the energy dissipation characteristics of rubber self-compacting concrete were analyzed based on the energy method. The results show that the single-cycle fatigue dissipation energy wd of rubber self-compacting concrete presents an obvious three-stage nature, of which the second stage is the main stage and remains basically constant. Under the same loading frequency, wd has an exponential relationship with the stress level, and under the same stress level , the higher the loading frequency, the greater wd. The critical dissipation energy Wcd at low stress levels is greater than the critical dissipation energy at high stress levels, and Wcd decreases approximately linearly with the load level. In addition, a method for predicting the fatigue life of rubber self-compacting concrete based on dissipated energy is proposed and compared with the test results to verify the effectiveness of the prediction method.
田华轩,陈徐东,陈晨,等.基于耗散能理论的橡胶自密实混凝土疲劳力学性能研究[J].混凝土与水泥制品,2021(6):19-24. TIAN H X,CHEN X D,CHEN C,et al.Study on Fatigue Mechanical Property of Rubber Self-compacting Concrete Based on Energy Dissipation[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):19-24.
自密实补偿收缩高强钢管混凝土的制备及应用
自密实补偿收缩高强钢管混凝土的制备及应用
  • 周孝军1,2,庞 帅1,2,丁庆军2,3,牟廷敏2,4,彭健秋1,2,李成君2,5
2021年第6期
摘要
引用本文
摘   要:为解决高强钢管混凝土组合结构高墩的主管内高抛混凝土与大流动性、低收缩协同提升的难题,研究了胶凝材料组成体系、骨料母岩强度对混凝土工作性和力学性能的影响,探究了膨胀剂掺量对混凝土体积稳定性的影响,并通过SEM分析了高强钢管混凝土的微观结构。结果表明:硅灰与粉煤灰微珠复掺能有效降低混凝土的黏度;母岩强度较高的玄武岩能保证后期强度稳定增长;掺35 kg/m3的膨胀剂能保证混凝土的体积稳定性;微观结构显示混凝土具有致密的结构、饱满的界面过渡区。掺硅灰、粉煤灰微珠与适量膨胀剂,利用玄武岩碎石能制备性能优异的自密实补偿收缩高强混凝土,并将其成功应用于四川凉山金阳河特大桥组合结构桥墩。 Abstract: In order to solve the problem of synergistic improvement of high throwing, large fluidity, and low shrinkage in the main pipes of the high concrete filled steel tube composite structure high pier, the effects of cementitious material composition system and aggregate mother rock strength on the working performance and mechanical properties of concrete were studied. The effect of the amount of expansion agent on the volume stability of concrete was investigated. The microstructure of high-strength steel tube concrete was analyzed by SEM. The results show that the mineral admixture system of silica fume and fly ash microbeads can effectively reduce the viscosity of the concrete. The basalt with high mother rock strength can guarantee the stable growth of the later strength. The expansion agent of 35 kg/m3 can guarantee the concrete volume stability performance. The microstructure shows that the concrete has a dense structure and a full interface transition zone. With the addition of silica fume and fly ash microbeads and an appropriate amount of expansion agent, the self-compacting shrinkage-compensating high-strength concrete was prepared with excellent performance and it was successfully applied to the combination structure of Jinyanghe Bridge in Liangshan, Sichuan Pier.
周孝军,庞帅,丁庆军,等.自密实补偿收缩高强钢管混凝土的制备及应用[J].混凝土与水泥制品,2021(6):25-29. ZHOU X J,PANG S,DING Q J,et al.Application and Preparation of Self-compacting Shrinkage-compensating High-strength Concrete for Steel Tube[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):25-29.
关于预拌混凝土企业开展绿色建材产品认证自评价工作的要点
关于预拌混凝土企业开展绿色建材产品认证自评价工作的要点
  • 魏 霞,李卫东,梁宏伟
2021年第6期
摘要
引用本文
摘   要:绿色建材产品认证作为一项新的认证制度目前正在全国范围内有序推进。通过对预拌混凝土企业开展绿色建材产品认证前自评价工作的研究,分析了评价标准、评价项目、评价结果以及开展评价工作的步骤和方法,为预拌混凝土企业开展自评价工作提供参考。 Abstract: Green building materials products certification is a new certification system, which is proceeding in nationwide. Through research the self-assessment work before green building materials product certification in ready-mixed concrete enterprises, the assessment criteria, assessment items, assessment result and the steps and methods were analyzed during the assessment work to provide the reference for ready-mixed concrete enterprises.
魏霞,李卫东,梁宏伟.关于预拌混凝土企业开展绿色建材产品认证自评价工作的要点[J].混凝土与水泥制品,2021(6):30-34. WEI X,LI W D,LIANG H W.The Key Points to Prepare the Self-evaluation of Green Building Materials Product Certification for Ready-mixed Concrete Enterprises[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):30-34.

水泥混凝土制品

一种输电铁塔用装配式板式基础的设计与模拟
一种输电铁塔用装配式板式基础的设计与模拟
  • 王彦海1,2,任文强1,2,刘晓亮1,2,时文峰3
2021年第6期
摘要
引用本文
摘  要:为提升山区丘陵等施工环境复杂地段的输电铁塔基础建设效率,以广泛应用的板式基础为研究对象,基于模块化、标准化及规范化的设计思想,分析了其受载特性及传荷路径,研发了装配式板式基础模块化方案和节点连接设计方法,并通过具体工程实例对设计方法进行了理论研究,最后利用ABAQUS软件对设计实例中的基础整体及节点受力情况进行了仿真分析。结果表明:装配式板式基础各模块受力合理,荷载传递路径明确,钢筋及节点连接构件应力与理论计算结果接近,能满足工程设计要求。 Abstract: In order to improve the efficiency of transmission tower foundation construction in mountainous and hilly areas with complex construction environment, the plate foundation widely used in transmission lines was taken as the research object. Based on the design idea of modularization, standardization and normalization, the loading characteristics and load transfer path of the foundation were analyzed. In order to meet the structural stability and component strength, the modular scheme of assembled slab foundation and the design method of joint connecting component were systematically studied, and the theoretical application of the design method was carried out through specific engineering examples. Finally, ABAQUS software was used to analyze the stress of whole foundation and joints in the design example. The results show that the stress of steel bar and joint connection members are close to the theoretical calculation results, and meet the engineering design requirements, which proves the feasibility of the design method.
王彦海,任文强,刘晓亮,等.一种输电铁塔用装配式板式基础的设计与模拟[J].混凝土与水泥制品,2021(6):35-40,45. WANG Y H,REN W Q,LIU X L,et al.Design and Simulation of the Assembled Slab Foundation for Transmission Tower[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):35-40,45.
石粉含量对预制构件混凝土性能的影响研究
石粉含量对预制构件混凝土性能的影响研究
  • 赵 斌
2021年第6期
摘要
引用本文
摘   要:为了解石粉含量对机制砂混凝土的性能影响,制备了2%、5%、7%、10%四种石粉含量的机制砂混凝土,分别研究了其力学性能、工作性及耐久性,探究了不同石粉含量机制砂在预制构件混凝土中的应用,进行了装配式构件的试生产。结果表明:在合适掺量下,石粉在一定程度上能改善机制砂的堆积密度,从而提高混凝土强度;石粉含量过大会降低混凝土密实性,从而影响混凝土力学性能;采用机制砂配制的混凝土力学性能、抗渗性能和抗冻性能可以达到与天然砂混凝土的同等水平。 Abstract: In order to study the influence of stone powder content on the performance of manufactured sand concrete, the manufactured sand concrete with 2%, 5%, 7% and 10% of stone powder was prepared, and its mechanical properties, working performance and durability were studied respectively. The application of manufactured sand with different stone powder content in prefabricated component concrete was studied, and the prefabricated component was producted in factory. The results show that stone powder can improve the strength of the concrete by improving the bulk density of manufactured sand in a certain extent. Excessive stone powder content will reduce the compactness of concrete and have bad effect on the mechanical properties of concrete. The mechanical properties, impermeability and frost resistance of concrete with manufactured sand are similar to those of concrete with natural sand.
赵斌.石粉含量对预制构件混凝土性能的影响研究[J].混凝土与水泥制品,2021(6):41-45. Effect of Different Stone Powder Content on the Performance of Precast ConcreteZHAO Bin[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):41-45.
综合管廊用气密性混凝土的制备及应用研究
综合管廊用气密性混凝土的制备及应用研究
  • 刘华东,张荣华,蒋小勇,桂根生,吴 鑫
2021年第6期
摘要
引用本文
摘   要:为避免综合管廊燃气泄漏造成的安全隐患,制备了气密性能符合要求的气密性混凝土,研究了胶凝材料用量、水胶比、砂率、矿物掺合料以及外加组分对综合管廊用气密性混凝土性能的影响。根据试验结果,成功制备了工作性良好的C40气密性混凝土,其透气系数达到4.72×10-12 cm/s,并成功应用于实际工程。 Abstract: In order to avoid the potential safety hazard caused by gas leakage in utility tunnel, the effects of cementitious material dosage, W/C, sand ratio, mineral admixtures and additional components on airtight concrete for utility tunnel were studied. According to the test results, C40 airtight concrete with good workability is successfully prepared, and its air permeability coefficient reaches 4.72×10-12 cm/s, which is applied to practical engineering successfully.  
刘华东,张荣华,蒋小勇,等.综合管廊用气密性混凝土的制备及应用研究[J].混凝土与水泥制品,2021(6):46-49. LIU H D,ZHANG R H,JIANG X Y,et al.Preparation and Application of Airtight Concrete for Utility Tunnel[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):46-49.

纤维水泥及制品

钢-PVA混杂纤维再生混凝土梁抗弯性能试验研究
钢-PVA混杂纤维再生混凝土梁抗弯性能试验研究
  • 苏 骏1,2,赵家玉1,李 磊1
2021年第6期
摘要
引用本文
苏骏,赵家玉,李磊.钢-PVA混杂纤维再生混凝土梁抗弯性能试验研究[J].混凝土与水泥制品,2021(6):50-55. SU J,ZHAO J Y,LI L.Experimental Study on Flexural Behavior of Steel-PVA Hybrid Fiber Reinforced Recycled Concrete Beams[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):50-55.
基于正交试验的纤维增强水泥基复合材料研究
基于正交试验的纤维增强水泥基复合材料研究
  • 陈剑敏,石建光,胡红梅,刘 涛
2021年第6期
摘要
引用本文
摘   要:采用正交试验法研究了水胶比、矿粉掺量、纤维掺量和种类对不同配合比纤维增强水泥基复合材料抗折强度、抗压强度和稠度的影响。结果表明:当水胶比为0.25,矿粉掺量为胶凝材料的15%,PVA纤维体积分数为1.5%时,所制备的纤维增强水泥基复合材料的综合性能最优,28 d抗折强度为13.84 MPa,28 d抗压强度为100.10 MPa,稠度为75 mm。 Abstract: The effects of water-binder ratio, mineral powder content, fiber content and types on the flexural strength, compressive strength and consistency of fiber reinforced cement-based composite materials with different mix proportions were studied by orthogonal test method. The results show that when the water-binder ratio is 0.25, the mineral powder content is 15% and the PVA fiber volume fraction is 1.5%, the comprehensive properties of the fiber reinforced cement-based composite materials are the best, and the 28 d flexural strength is 13.84 MPa, the 28 d compressive strength is 100.10 MPa and the consistency is 75 mm.
陈剑敏,石建光,胡红梅,等.基于正交试验的纤维增强水泥基复合材料研究[J].混凝土与水泥制品,2021(6):56-59,64. CHEN J M,SHI J G,HU H M,et al.Research on Fiber Reinforced Cement-based Composite Materials Based on Orthogonal Test Method[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):56-59,64.
冻融循环后PE-ECC梁受弯性能试验研究
冻融循环后PE-ECC梁受弯性能试验研究
  • 韩风霞1,2,刘继颜1,韩 霞1,2,刘鹏举1,贺成林1
2021年第6期
摘要
引用本文
摘   要:通过四点弯曲试验,研究了冻融循环0次、50次、100次、150次、200次后聚乙烯纤维超高韧性水泥基复合材料(PE-ECC)梁的受弯性能。结果表明:PE-ECC梁的质量损失、极限荷载、跨中最大挠度均随着冻融循环次数的增加而降低,但降低程度不显著,说明冻融循环后PE-ECC梁的受弯性能退化不明显。 Abstract: Four point bending tests were carried out to study the flexural behavior of polyethylene fiber ultra-high toughness cement-based composite(PE-ECC) beams after freeze-thaw cycles of 0, 50, 100, 150 and 200. The results show that the mass loss, ultimate load and maximum deflection of PE-ECC beams decrease with the increase of freeze-thaw cycles, but the reduction degree is not significant, which indicates that the flexural performance degradation of PE-ECC beams is not obvious after freeze-thaw cycles.
韩风霞,刘继颜,韩霞,等.冻融循环后PE-ECC梁受弯性能试验研究[J].混凝土与水泥制品,2021(6):60-64. HAN F X,LIU J Y,HAN X,et al.Experimental Study on Bending Performance of PE-ECC Beams After Freeze-thaw Cycle[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):60-64.

房建材料及制品

秸秆夹芯复合外挂墙板的制备及抗风承载力研究
秸秆夹芯复合外挂墙板的制备及抗风承载力研究
  • 肖力光,李纪良
2021年第6期
摘要
引用本文
摘   要:利用秸秆纤维、粉煤灰及硅藻土制备了夹芯复合外挂墙板,研究了秸秆纤维长度、粉煤灰和硅藻土协同作用对秸秆水泥基材料力学性能的影响,确定了粉煤灰及硅藻土的预处理方式,通过正交试验确定了粉煤灰、硅藻土取代水泥的最佳取代率及水灰比;利用ANSYS有限元软件对秸秆夹芯复合外挂墙板的抗风承载力进行了数值模拟,分析了不同墙板厚度及钢丝含量对秸秆夹芯外挂墙板抗风承载力的影响。结果表明:随着秸秆纤维掺量的增加,试件抗压强度逐渐下降,其中,秸秆纤维长度为5~10 mm时,秸秆水泥基材料的力学性能最佳;粉煤灰、硅藻土的最佳取代率分别为10%、4%,最佳水灰比为0.48;秸秆夹芯外挂墙板的抗风承载力满足规范要求,增加墙板厚度及改变钢丝布置方式均能提高秸秆夹芯复合外挂墙板的抗风承载力,且改变钢丝布置对抗风承载力的影响显著。 Abstract: The straw fiber, fly ash and diatomite were used to prepare sandwich composite external wallboard, and the effect of straw fiber length, fly ash and diatomite on the properties of straw cement-based materials was studied, and the  preprocessing method of fly ash and diatomite was determined. The optimal replacement rate of fly ash and diatomite to replace cement and water-cement ratio were determined by orthogonal test. The wind resistance bearing capacity of straw sandwich composite wallboard was simulated by ANSYS software, and the influence of wall thickness and steel wire content on the wind resistance bearing capacity of straw sandwich external wallboard was analyzed. The results show that with the increase of the straw fiber content, the compressive strength decreases gradually. When the straw fiber length is 5~10 mm, the mechanical properties of straw cement-based materials are the best. The optimal replacement rate of fly ash and diatomite is 10% and 4% respectively, and the optimal water-cement ratio is 0.48. The wind resistance bearing capacity of straw sandwich external wallboard meets the requirements of the code. The wind resistance bearing capacity of straw sandwich external wallboard can be improved by increasing the wallboard thickness and changing the steel wire arrangement, and the effect of changing the steel wire arrangement on the wind resistance bearing capacity is significant.
肖力光,李纪良.秸秆夹芯复合外挂墙板的制备及抗风承载力研究[J].混凝土与水泥制品,2021(6):65-69. XIAO L G,LI J L.Preparation and Wind Resistance Bearing Capacity of Straw Sandwich External Wall Panels[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):65-69.
矩形螺旋箍筋混凝土短柱力学性能试验研究
矩形螺旋箍筋混凝土短柱力学性能试验研究
  • 魏兴娜,李江华,徐 晓,郝文秀
2021年第6期
摘要
引用本文
摘   要:设计制作了5根配置矩形螺旋箍筋的混凝土短柱和3根配置普通箍筋的混凝土短柱,研究了混凝土强度、箍筋间距对构件极限承载力、力学性能的影响,在试验的基础上,利用ANSYS有限元软件对混凝土短柱进行了静力非线性分析。结果表明:与普通箍筋混凝土短柱相比,矩形螺旋箍筋混凝土短柱的极限承载力和抗变形能力有所提高;箍筋间距越小,其对混凝土短柱的约束效果越好;混凝土强度等级越高,构件的极限承载力越大;有限元分析结果与试验结果基本一致。 Abstract: Five concrete short columns with rectangular spiral stirrups and three concrete short columns with ordinary stirrups were designed, and the effects of concrete strength and stirrup spacing on the ultimate bearing capacity and mechanical properties of concrete short columns were studied. Based on the test, the static nonlinear analysis of concrete short columns was carried out by using ANSYS finite element software. The results show that compared with concrete short columns with ordinary stirrups, the ultimate bearing capacity and anti deformation capacity of concrete short columns with rectangular spiral stirrups are improved. The smaller the stirrup spacing, the better the restraint effect. The higher the concrete strength grade, the greater the ultimate bearing capacity.  The analysis results are basically consistent with the test results.
魏兴娜,李江华,徐晓,等.矩形螺旋箍筋混凝土短柱力学性能试验研究[J].混凝土与水泥制品,2021(6):70-75. WEI X N,LI J H,XU X,et al.Experimental Study on Mechanical Properties of Concrete Short Columns with Rectangular Spiral Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):70-75.
膨胀剂掺量及套箍系数对钢管混凝土轴压柱承载力的影响
膨胀剂掺量及套箍系数对钢管混凝土轴压柱承载力的影响
  • 程阿青1, 刘骁帆2, 胡 浪2, 曹新明3
2021年第6期
摘要
引用本文
摘   要: 通过18根外径分别为219 mm和273 mm试件的轴压试验及227根试件的有限元模拟分析,探讨了膨胀剂掺量及套箍系数对试件承载力的影响。结果表明:添加膨胀剂后,初始紧箍力增大,钢管和混凝土迅速进入协同工作状态,有效提高了钢管混凝土的承载力;膨胀剂掺量过大会导致钢管混凝土的横向应力增加,承载力降低;当膨胀剂掺量为5%时,屈服承载力和极限承载力的提高幅度最大,分别为11.9%和49.85%;添加膨胀剂的钢管混凝土柱承载力及延性随着套箍系数的增加而提高;提出的承载力计算公式可满足工程实际应用。 Abstract: Through the axial compression test of 18 specimens with 219 mm and 273 mm outer diameter and the finite element simulation analysis of 227 specimens, the influence of expansive agent content and hoop coefficient on the bearing capacity of the specimens was discussed. The results show that after adding expansive agent, the initial hoop force increases, the steel tube and concrete quickly enter the cooperative working state, and the bearing capacity of concrete filled steel tube is effectively improved. When the expansive agent content is too large, the transverse stress of concrete filled steel tube increases and the bearing capacity decreases. When the expansive agent content is 5%, the yield bearing capacity and ultimate bearing capacity increase by 11.9% and 49.85% respectively. The bearing capacity and ductility of concrete filled steel tube columns with expansive agent increase with the increase of stirrup coefficient. The calculation formula of the bearing capacity can meet the engineering application.
程阿青,刘骁帆,胡浪,等.膨胀剂掺量及套箍系数对钢管混凝土轴压柱承载力的影响[J].混凝土与水泥制品,2021(6):76-79,84. CHENG A Q,LIU X F,HU L,et al.Influence of Expansive Agent Content and Hoop Coefficient on Bearing Capacity of Concrete Filled Steel Tube Columns Under Axial Compression[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):76-79,84.
装配式墙板BIM模型自动生成的二次开发研究
装配式墙板BIM模型自动生成的二次开发研究
  • 施丁平1,孙 丰1,李 樊2,汪德江2,朱 江2
2021年第6期
摘要
引用本文
摘   要:采用Revit二次开发技术,对PC装配式墙板的BIM模型自动生成功能进行了研究。根据墙板的各种参数,建立了墙板外形与配筋的BIM模型,实现了装配式墙板一键参数化建模,为装配式与BIM的结合提供了快速生成BIM模型的技术与方法。 Abstract: Using the secondary development technology of Revit, the BIM model automatic generation function of the prefabricated wall was studied. According to various parameters of the wall, the BIM model of the shape and reinforcement of the wall can be generated, which provides a technique and method for rapid generation modeling for the combination of prefabricated building and BIM.
施丁平,孙丰,李樊,等.装配式墙板BIM模型自动生成的二次开发研究[J].混凝土与水泥制品,2021(6):80-84. SHI D P,SUN F,LI F,et al.Research on Secondary Development of Prefabricated Walls Based on BIM[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):80-84.

检测及试验方法研究

装配式建筑套筒灌浆缺陷检测方法及研究进展
装配式建筑套筒灌浆缺陷检测方法及研究进展
  • 姚丹丹1,吕孝华2
2021年第6期
摘要
引用本文
摘   要:套筒灌浆连接是装配式建筑中钢筋的最主要和应用最广泛的一种连接方法,通过分析灌浆缺陷对连接件、构件以及结构性能的影响,总结了装配式建筑中钢筋连接套筒灌浆缺陷的不同检测方法,并归纳了灌浆缺陷的改进方法。灌浆缺陷的主要检测方法有:超声波法、X射线法、内窥镜法、冲击回波法、预埋钢丝法、压电陶瓷材料检测法、电阻法、预埋传感器法、神经网络检测法和毛细管注水法。从设备到施工方法的改进措施包括定量控制装置、缺陷可检修型灌浆套筒和扩孔注射补灌。在实际工程中,可以先采用超声波法快速检测灌浆缺陷,然后结合内窥镜法检测灌浆缺陷尺寸,最后采取扩孔注射补灌方式进行缺陷补救。 Abstract: Sleeve grouting connection is the main and the most extensive connection method for steel reinforcement in prefabricated building. By analyzing the influence of grouting defects on the properties of connectors、components and structures, the detection methods of grouting defects and the improvement methods of grouting defects are summarized. The main detection methods of grouting defects include ultrasonic method, X-ray method, endoscope method, impact echo method, embedded steel wire method, piezoelectric ceramic material detection method, resistance method, embedded sensor method, neural network detection and capillary water injection method. Improvement measures from equipment to construction methods include quantitative control device, defect repairable grouting sleeve and reaming injection filling. In practical projects, the ultrasonic method can be used to quickly detect the grouting defects, and then the size of grouting defects can be detected in combination with the endoscope method, and finally the flaw repair can be carried out by means of reamed injection irrigation.
姚丹丹,吕孝华.装配式建筑套筒灌浆缺陷检测方法及研究进展[J].混凝土与水泥制品,2021(6):85-90. YAO D D,LYU X H.Defect Detection Methods and Research Progress of Sleeve Grouting Defects in Prefabricated Buildings[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):85-90.

节能与环保

活性激发再生砖粉对UHPC力学性能的影响
活性激发再生砖粉对UHPC力学性能的影响
  • 杜明芳,赵永强,遆永新,尚静静
2021年第6期
摘要
引用本文
摘   要:利用物理、化学、高温方式对再生砖粉进行了活性激发,测试其活性指数,并研究了活性最高再生砖粉的取代率对超高性能混凝土(UHPC)抗压性能、抗折性能和劈裂抗拉性能的影响。结果表明:物理、化学、高温方式均有助于激发再生砖粉的活性,其中,球磨45 min再生砖粉的活性最高,为71.4%;再生砖粉UHPC的力学性能与再生砖粉取代率呈负相关;当再生砖粉取代率为10%时,再生砖粉UHPC的力学性能接近基准组。 Abstract: The physical, chemical and high temperature methods were used to activate the recycled brick powder, and its activity index was tested, and the effect of the replacement rate of the most active recycled brick powder on the compressive, flexural and split tensile properties of UHPC was studied. The results show that the physical, chemical and high temperature methods are helpful to stimulate the activity of recycled brick powder, and the activity of recycled brick powder is the highest at 71.4% by ball milling for 45 min. The mechanical properties of recycled brick powder UHPC are negatively correlated with the replacement rate of recycled brick powder. When the recycled brick powder replacement rate is 10%, the mechanical properties of recycled brick powder UHPC are close to those of the reference group.
杜明芳,赵永强,遆永新,等.活性激发再生砖粉对UHPC力学性能的影响[J].混凝土与水泥制品,2021(6):91-94. DU M F,ZHAO Y Q,TI Y X,et al.Effect of Activated Recycled Brick Powder on Mechanical Properties of UHPC[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):91-94.
工程渣土陶粒多孔混凝土力学与植生性能研究
工程渣土陶粒多孔混凝土力学与植生性能研究
  • 辛晓斌1,李骁男1,刘永川1,李 磊2,张腾飞3,马 炎1,刘锦涛4
2021年第6期
摘要
引用本文
辛晓斌,李骁男,刘永川,等.工程渣土陶粒多孔混凝土力学与植生性能研究[J].混凝土与水泥制品,2021(6):95-98. XIN X B,LI X N,LIU Y C,et al.Study on Mechanical and Planting Performance of Engineering Residue Ceramsite Porous Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):95-98.
再生混凝土配合比优化设计
再生混凝土配合比优化设计
  • 王立波,赵 军
2021年第6期
摘要
引用本文
摘   要:研究了再生骨料替代率、聚丙烯纤维和钢纤维掺量对再生混凝土性能的影响。结果表明:替代率为30%的再生细骨料对混凝土的密度、和易性以及抗压强度无显著的负面影响;一定掺量的纤维对混凝土的工作性无显著影响,但能有效提高再生混凝土的劈裂抗拉强度和抗折强度,改善混凝土的抗裂性和脆性。 Abstract: The effects of recycled aggregate replacement rate, polypropylene fiber and steel fiber content on the properties of recycled concrete were studied. The results show that the recycled fine aggregate with a replacement rate of 30% has no significant negative effect on the density, workability and compressive strength of concrete. A certain amount of fiber has no significant effect on the workability of concrete, but it can effectively improve the splitting tensile strength and flexural strength of recycled concrete, and improve the cracking resistance and brittleness of concrete.
王立波,赵军.再生混凝土配合比优化设计[J].混凝土与水泥制品,2021(6):99-102. WANG L B,ZHAO J.Optimization Design of Mix Proportion of Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):99-102.

书评

矸石电厂粉煤灰的活化及应用技术 ——评《矸石电厂粉煤灰的活化及应用》
矸石电厂粉煤灰的活化及应用技术 ——评《矸石电厂粉煤灰的活化及应用》
  • 冯月娥
2021年第4期
摘要
引用本文
我国混凝土工程建设飞速发展,水泥用量与日俱增。而生产水泥需要消耗大量能源,这与国家的绿色环保政策背道而驰。矸石电厂用的煤矸石燃烧后灰分较高,粉煤灰的产出量是燃煤电厂的2倍左右,产出的粉煤灰含碳量高,理化特性与燃煤电厂粉煤灰差别较大,且造成了严重的环境污染和土地资源浪费。矸石电厂粉煤灰的循环利用已逐渐引起了学术界的关注,成为了研究热点。陈杰编著的《矸石电厂粉煤灰的活化及应用》一书通过对矸石电厂粉煤灰的形貌特征、化学成分、矿物组成等进行分析,采用化学、物理和物理化学活化技术对粉煤灰-水泥胶砂体系进行激活,得出了合理的活化方案;此外,以矸石电厂粉煤灰取代水泥制造粉煤灰基膏体充填材料,实现废物循环利用。笔者通过学习,认为该书具有较强的实用性,对于实现循环经济具有一定的指导意义,现简要总结重点内容。
冯月娥.矸石电厂粉煤灰的活化及应用技术——评《矸石电厂粉煤灰的活化及应用》[J].混凝土与水泥制品,2021(4):103.

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珊瑚碎屑混凝土的强度特性及破坏形态分析
珊瑚碎屑混凝土的强度特性及破坏形态分析
  • 王 磊1,2,范 蕾1,2
2015年第1期
摘要
引用本文
摘   要:针对目前对珊瑚碎屑混凝土的力学机理尚不清晰这一问题,对不同龄期和水灰比的珊瑚混凝土试块进行了试验研究。试验结果表明,珊瑚混凝土具有早强、快硬的特点;同时,当水灰比减小到一定程度后,单纯减小水灰比并不能明显提高珊瑚混凝土的抗压强度。本文从材料特性、界面特性以及龄期和水灰比等方面着手,对珊瑚混凝土的强度特性作了详细分析,并介绍了珊瑚混凝土的破坏形态,从而可为珊瑚碎屑应用于海岛混凝土工程提供一定的参考依据。 Abstract: Currently, the mechanical mechanism of coral debris concrete is not well understood, so the research on coral concrete test block in different age and water cement ratio is carried out. The test results show that coral concrete has the characteristics of fast strengthening and hardening, and when the water cement ratio decreases to a certain extent, simply reducing the water cement ratio could not result in obvious additions of compressive strength of coral concrete. From the aspects of material properties, interface properties,age and water cement ratio, the strength characteristics of the coral concrete are analyzed in detail, and the failure pattern is introduced, which can provide reference for application of coral debris in island concrete engineering.
王磊,范蕾. 珊瑚碎屑混凝土的强度特性及破坏形态分析[J].混凝土与水泥制品,2015(1):1-4. WANG L,FAN L.Strength Characteristic and Failure Pattern Analysis on Coral Debris Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(1):1-4.
装配式结构用高强套筒灌浆料性能试验研究
装配式结构用高强套筒灌浆料性能试验研究
  • 汪秀石,杨智良,吴照学
2015年第2期
摘要
引用本文
摘   要:研究了装配式结构用高强套筒灌浆料的性能,通过试配并进行了流动度、强度和膨胀性试验,优选出了优化配合比。同时基于优化配合比进行了水胶比、减水剂掺量和膨胀剂掺量对高强套筒灌浆料性能影响的研究。试验结果表明,随着水胶比(W/B)增加,流动度逐渐增大,但强度随W/B增加呈现明显降低趋势;减水剂可有效改善流动度,而当掺量过多时对强度有一定的影响;膨胀率随膨胀剂掺量增加呈现增长趋势,但当掺量小于8.0%时,膨胀效果较差,掺量大于12.0%时,对流动度和强度产生不利影响。 Abstract: The properties of high-strong cementitious grout for prefabricated concrete structure are studied, and the optimum mix proportion is elected by the tests of fluidity, strength and expansibility. The roles of W/B and the content of superplasticizer or expanders in high-strong cementitious grout for coupler are researched respectively based on the optimum mix proportion. The test results show that the fluidity of the grout increases with the increasing of W/B, but its strength has significantly decreasing trend; the fluidity of the grout can be improved effectively by superplasticizer, but its strength will decrease if superplasticizer content is excessive; expansion rate of the grout increases with the increasing of expanders agent content, but the expansibility is poor when the content is less than 8.0%, and it has an adversely affect on the liquidity and strength of the grout when the content is greater than 12.0%.
汪秀石,杨智良,吴照学.装配式结构用高强套筒灌浆料性能试验研究[J].混凝土与水泥制品,,2015(2):65-68. WANG X S,YANG Z L,WU Z X.Experimental Research on Performance of High-strong Cementitious Grouting for Prefabricated Concrete Structure[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(2):65-68.
再生粗骨料强化处理工艺对再生混凝土性能的影响
再生粗骨料强化处理工艺对再生混凝土性能的影响
  • 郭远新,李秋义,孔 哲,岳公冰,韩 帅
2015年第6期
摘要
引用本文
摘   要:分别采用物理强化、化学强化和物理-化学复合强化三种不同的强化方式对简单破碎再生粗骨料进行强化处理,并采用100%取代天然碎石制备再生粗骨料混凝土,研究了不同强化处理后的再生粗骨料对混凝土工作性能、力学性能、抗渗透性能和抗碳化性能的影响。结果表明,经过强化处理的再生粗骨料混凝土的各项性能均有不同程度的提高,其中经二次物理强化处理后的再生粗骨料混凝土的用水量较天然碎石混凝土仅增加了6kg/m3,其抗压强度也达到最高值,接近于天然碎石混凝土;经二次物理强化和化学浸渍复合强化处理后的再生混凝土氯离子扩散系数降低了13.6%;三种不同的强化方式处理后,再生混凝土的碳化深度和碳化速度均有所降低。 Abstract: Three kinds of different strengthening technologies of physical enhancement, chemical enhancement and physical-chemical compound enhancement to strengthen the simple crushing recycled coarse aggregate are adopted, with 100% replaced natural gravel preparation of recycled coarse aggregate concrete, and the influences of the recycled coarse aggregate of different strengthening treatment on the working performance, mechanical properties, penetration resistance and carbonation resistance of concrete are studied. The research results show that, through strengthening treatment, recycled coarse aggregate concrete properties are improved to different degrees, the water consumption of recycled coarse aggregate concrete after the secondary physical strengthen treatment is only increased by 6kg/m3 than that of natural gravel concrete. The compressive strength also reached the highest value, close to the natural gravel concrete. The chloride ion diffusion coefficient of recycled concrete after the secondary physical-chemical compound strengthening treatment is reduced by 13.6%. The depth of carbonation and carbonation velocity decrease after three kinds of different strengthening treatments.
郭远新,李秋义,孔哲,等.再生粗骨料强化处理工艺对再生混凝土性能的影响[J].混凝土与水泥制品,2015(6):11-17. GUO Y X,LI Q Y,KONG Z,et al.Influence of Strengthening Treatment Technology of Recycled Coarse Aggregate on Performance of Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(6):11-17.
无砂再生透水混凝土配合比设计
无砂再生透水混凝土配合比设计
  • 张松涛1,贾欣悦2,宋 卓1,贾艳东1
2016年第12期
摘要
引用本文
张松涛,贾欣悦,宋卓,等.无砂再生透水混凝土配合比设计[J].混凝土与水泥制品,2016(12):6-12. ZHANG S T,JIA X Y,SONG Z,et al.Design on Mix Proportion of No-fines Pervious Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2016(12):6-12.
清水混凝土概念、研究现状、存在问题及配合比设计方 综述
清水混凝土概念、研究现状、存在问题及配合比设计方 综述
  • 郭 伟1,路林海2,王龙志3,崔 鑫3,王桂玲4,张海霞3
2016年第10期
摘要
引用本文
摘   要:20世纪90年代后期以来,清水混凝土研究及工程应用得到了长足发展,许多城市建成了清水混凝土标志性工程。为了更好地促进清水混凝土研究的深入、工程质量的提高,对清水混凝土的概念、研究现状、存在问题及现有的清水混凝土配合比设计方法进行了系统地梳理、总结。通过对清水混凝土现状的研究,可使相关领域技术人员认识到清水混凝土发展中存在的不足、明确清水混凝土的研究方向,以实现清水混凝土技术研究水平的再提高,有力地支持清水混凝土工程应用的进一步推广。 Abstract: Since the late 1990s, research and application of fair-faced concrete has made considerable progress, many cities built landmark projects of fair-faced concrete. In order to better promote the study in-depth and the engineering quality improvement of fair-faced concrete, the concept, research status, existing problems and mixture design methods of fair-faced concrete are systematically reviewed and summarized. Through the above study of fair-faced concrete, the relevant technicians recognize the lack of fair-faced concrete in the development and realize a clear research direction, in order to improve research level, strongly support further promotion of fair-faced concrete in engineering applications.
郭伟,路林海,王龙志,等.清水混凝土概念、研究现状、存在问题及配合比设计方法综述[J].混凝土与水泥制品,2016(10):23-27. GUO W,LU L H,WANG L Z,et al.Summary for Concept, Research Status, Existing Problems and Mix Proportion Design of Fair-faced Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2016(10):23-27.
新型装配式建筑构件生产及其施工技术的研究与应用
新型装配式建筑构件生产及其施工技术的研究与应用
  • 范 玉1,4,徐 华2,黄 新3,黄继战4,马北京4
2015年第12期
摘要
引用本文
摘   要:通过对建筑PC构件的设计、生产、施工进行的研究,对建筑PC构件进行了再设计及优化,确定了合理的PC构件生产及其施工工艺方案,并对影响PC构件质量的相关因素进行了分析。 Abstract: Through the research on design of PC component, production and construction,  construction PC component is carried out for re-design and optimization. The reasonable PC component production and construction technology program are determined, and factors affecting the quality of PC are analyzed.
范玉,徐华,黄新,等.新型装配式建筑构件生产及其施工技术的研究与应用[J].混凝土与水泥制品,2015(12):87-89. FAN Y, XU H,HUANG X,et al.Research and Application of Production for New Type of Prefabricated Construction Component and Its Construction Technology[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(12):87-89.
石墨烯纳米片对水泥基复合材料力学性能的影响
石墨烯纳米片对水泥基复合材料力学性能的影响
  • 王 辉,刘爱红,李 航
2015年第12期
摘要
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摘   要:采用球磨法将石墨烯纳米片分散在水泥基体中,研究了石墨烯纳米片掺量对水泥基材料抗折强度和抗压强度的影响。实验结果表明,适量的石墨烯纳米片可均匀分散在水泥基体中,通过桥联效应和拔出效应对水泥基材料起增强增韧作用,当石墨烯纳米片掺量为0.04%时,石墨烯纳米片与水泥基体界面结合良好,没有明显过渡层,试件3d抗折强度和抗压强度分别提高了22.84%和23.61%。 Abstract: Graphene nanoplatelets (GNPs) were dispersed in the cement matrix by milling method. The effect of GNPs with different contents on the flexural strength and compressive strength of composites were studied. The results showed that well dispersed GNPs improved the mechanical properties of cement composites, owing to GNPs excellent pulling-out and bridging capability. When the GNPs content was 0.04%, the mechanical properties of cement composites were increased obviously. Its flexural and compressive strength increased by 22.84% and 23.61% respectively compared with the referee sample after curing 3 days. The interface between graphene nanoplatelets and cement was bonded well, with no obvious transition layer.
王辉,刘爱红,李航.石墨烯纳米片对水泥基复合材料力学性能的影响[J].混凝土与水泥制品,2015(12):25-27. WANG H,LIU A H,LI H.Influence of Graphene Nanoplatelets on Mechanical Properties of Cement-based Composites[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(12):25-27.
大型智能PC构件自动化生产线简介
大型智能PC构件自动化生产线简介
  • 孙 红1,孙 健1,吴玉厚1,赵凯军2
2015年第3期
摘要
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摘   要:根据混凝土工厂化生产的需要,阐述了大型智能PC构件生产线的组成部分、工艺过程和技术重点;分析了该生产线中蕴含的微观物流、信息采集、分布式控制及多智能体的协同过程,总结了PC构件生产线的优点和技术创新突破点,可为大型智能PC构件全自动生产线的研制提供理论基础和技术依据。 Abstract: According to the needs of the concrete factory production, the large scale intelligent automatic PC production line the technological process and technical keys of PC component are introduced, the cooperative process of microscopic logistics, information acquisition, distributed control and multi-agent systems are analyzed, the advantages and technology innovation of PC components production line are summarized, which can provide theoretical basis and technical basis for large scale intelligent automatic production line of PC components.
孙红,孙健,吴玉厚,等.大型智能PC构件自动化生产线简介[J].混凝土与水泥制品,2015(3):45-48. SUN H,SUN J,WU Y H,et al.Introduction of Large Scale Intelligent PC Automatic Production Line[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(3):45-48.
建筑垃圾再生微粉的研究现状
建筑垃圾再生微粉的研究现状
  • 毛新奇1,2,屈文俊1,朱 鹏1
2015年第8期
摘要
引用本文
摘   要:建筑垃圾再生微粉各项性能的研究是推进建筑垃圾资源化的重要基础。根据近年来国内关于再生微粉的主要研究成果,对材料来源、制备工艺、工作性能、力学性能和耐久性能等方面进行了综述,并对相关的影响因素进行了探讨分析。 Abstract: Research on the properties of utilization regeneration of powder for construction waste is the important foundation of resource utilization of construction waste. Based on the recent domestic research on recycled powder, material source, manufacturing process, workability, mechanical properties and the durability are reviewed. Besides, the related influence factors are discussed and analyzed.
毛新奇,屈文俊,朱鹏.建筑垃圾再生微粉的研究现状[J].混凝土与水泥制品,2015(8):89-93. MAO X Q,QU W J,ZHU P.Study Status of Recycled Powder for Construction Waste[J].CHINA CONCRETE AND CEMENT PRODUCTS,2015(8):89-93.
再生粗骨料及再生混凝土性能研究进展
再生粗骨料及再生混凝土性能研究进展
  • 甘 福1,周脉席1,3,濮 琦2
2018年第9期
摘要
引用本文
摘   要:结合国内外再生粗骨料混凝土的研究现状,综述了再生粗骨料性能、再生粗骨料混凝土性能、再生混凝土改性方法及改性后的混凝土性能等方面内容,展望了再生粗骨料及再生混凝土未来研究方向。 Abstract: Combining the study of recycled coarse aggregate concrete at home and abroad, the property of recycled coarse aggregate, the performance of recycled coarse aggregate concrete, the modified method of recycled concrete and the performance of modified concrete are reviewed, and the fature research direction on recycled coarse aggregate and recycled concrete is prospected.
甘福,周脉席,濮琦.再生粗骨料及再生混凝土性能研究进展[J].混凝土与水泥制品,2018(9):102-107. GAN F,ZHOU M X,PU Q.Research Progress of Performance of Recycled Coarse Aggregate and Recycled Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2018(9):102-107.
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